Machine for operating rock-drills and earth-augers



(No Model.)

B. DAVIS. MACHINE FORQOPERATING ROCK DRILLS AND EARTH AUGERS. No.302,111. Patented July 15, 1884.

12'1":31- Y i 11 Y E WITNESSES INVB l' l I I ATTORNEY/91 UNITED- STATESPAT NT OFFICE.

' EMANUEL DAVIS, OF EUREKA SPRINGS, ARKANSAS.

MACHINE FOR OPERATING ROCK-DRlLLS AND EARTH-AUGERS.

SPECIFICATION forming part of Letters Patent No. 302,111, dated July 15,1884:. V I

Application filed January 18, 1884. (No model.) i

To all whom it may concern- Be it known that I, EMANUEL DAVIS, a citizenof the United States of America, residing at Eureka Springs, in thecounty of Carroll and State of Arkansas, have invented certain newanduseful Improvements in Machines for Operating Rock-Drills andEarth-Angers, of which the following is a specification, referencebeinghad therein to the accompanying draw- This invention 'pertainsto animprovement in draft attachments especially adapted for machines foroperating rock-drills or earth-augers, having for its object to promotethe application of the draft to increase the drivingpower; and theinvention consists of the detailed combination andconstruction,substantially as hereinafter fully set forth,and pointed out in theclaim.- a

In the accompanying drawing, the figure is a plan view of myimprovement.

The object of my invention is to provide an improvement on the patentgranted to Gama- 1iel Taylor, No. 228,418 dated June 1, 1880, a planview of which is shown in the accompanying drawing with my improvementembodied therewith, which consists of the metallic frame D, havingsecured thereto the clevis or hook O.

A refers to the base-frame of the machine, adapted to operaterock-drills or earth-angers,

which latter,not having, so far as its operative,

presence of two witnesses.

mechanism is concerned, any bearing on the subject of this application,need not be further referred to. Within this frame is j ournaled thetraveling wheel B, moving, where the draft is applied thereto, in acircular path around the drill G. The metallic frame D consists of ametallic ba'r fashioned to span the wheel B.

in order to furnish a suitable support for the clevis or hook G, towhich the draft-horse is attached, and of its ends are formed theangular bars E and E, which are bolted at G to the longitudinalframe-bars E. Thus constructed, the leverage is lengthened and the forcerequisite to drive the machine is also reduced by placing the wheel Binside of the long arm of the lever.

This invention is simple, inexpensive, and readily applied.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

In a machine for operating rock-drills, the combination of metallicframe D and clevis O, substantially as shown, and for the purposedescribed.

In testimony whereof I affix my signaturein EMANUEL DAVIS.

Witnesses: v

A. DAvIs, O. W. SELrRIDGE.

